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27 July, 00:38

A machine supply energy at a rate of 4000 W and does used to work at a rate of 3760 W what is the efficiency of the machine?

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  1. 27 July, 04:17
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    Efficiency = (work output / work input) * 100

    = (3760 / 4000) * 100

    Efficiency = 0.94 * 100

    Efficiency = 94 %
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